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  4. Can Windows XP 32bit access >2TB network share?

Can Windows XP 32bit access >2TB network share?

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  • D Offline
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    daniilzol
    wrote on last edited by
    #1

    Certain windows OS'es such as Vista and Windows Server 2003 with SP1 can create partitions more than 2TB in size using GPT. Suppose I have such machine with single partition spanning 3TB in size under drive letter D. Would a regular windows XP 32bit machine (which do not support GPT by the way) have any problems connecting to that partition when mapped to \\machinename\D$? Any issues when reading or writing data? Anybody has experience doing something like this? Thanks.

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    • D daniilzol

      Certain windows OS'es such as Vista and Windows Server 2003 with SP1 can create partitions more than 2TB in size using GPT. Suppose I have such machine with single partition spanning 3TB in size under drive letter D. Would a regular windows XP 32bit machine (which do not support GPT by the way) have any problems connecting to that partition when mapped to \\machinename\D$? Any issues when reading or writing data? Anybody has experience doing something like this? Thanks.

      M Offline
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      Mike Dimmick
      wrote on last edited by
      #2

      The SMB protocol used by Windows file sharing doesn't deal in disk offsets. It asks the server to open the file for it, passing the filename to get a handle. The fact that D$ is the root of the filesystem is irrelevant. The SMB protocol supports 64-bit offsets for read and write operations, so you can manipulate very large files (> 4GB).

      DoEvents: Generating unexpected recursion since 1991

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      • M Mike Dimmick

        The SMB protocol used by Windows file sharing doesn't deal in disk offsets. It asks the server to open the file for it, passing the filename to get a handle. The fact that D$ is the root of the filesystem is irrelevant. The SMB protocol supports 64-bit offsets for read and write operations, so you can manipulate very large files (> 4GB).

        DoEvents: Generating unexpected recursion since 1991

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        daniilzol
        wrote on last edited by
        #3

        I'm not sure you understood the issue, either that or I'm not seeing definitive answer to my question in your reply. See this link: http://www.carltonbale.com/2007/05/how-to-break-the-2tb-2-terabyte-file-system-limit/ Most of the older windows operating systems (including windows xp 32 bit) only support MBR partitioning meaning they cannot create or work with partitions more than 2TB in volume. To get around this problem Microsoft introduced GPT partitioning in latest operating systems. With GPT there are virtually no limits on the partition size. The problem here is not connecting to the drive root or working with files >4GB. It's whether the system that does not support GPT such as windows xp 32bit can connect to a network share >2TB in size and work correctly with it. I would hope that network protocol would abstract it all away. However, I have read reports that xp had problems writing to linux (yes, I know, slightly different) network share that was 3TB in size. So I wanted to ask if anyone knows if that really is a problem or not.

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